Electrical parametersFilament voltage: 10VFilament current: 10AThe maximum instantaneous filament current: 15AMagnification factor: 35Electrode capacitance:Anode - the GRID: 6.3pFCathode - the GRID: 12.3pFAnode - Cathode: 8.5pFMechanical properties:Quality: (approximately) 0.6KgInstallation: vertical, anode terminals upCooling: coolingShell and tube maximum temperature: 225 ° CSealing at the highest temperature: 200 °CTerminal high temperature: 200 °CMaximum ratings

The maximum anode DC voltage: 4KVMaximum Anode DC Current: 500mAMaximum GRID DC current: 120mAMaximum anode dissipation power: 350WMaximum GRID power dissipation: 20WIn typical operation: class C telegraphFilament voltage: 10VAnode DC voltage: 3KVGRID DC bias voltage:-250VAnode DC Current: 461mAGRID DC current: 29.4mAAnode output power: 1000WNote; quenching glass bulb when the anode dissipation power greater than 300W